﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp4
{
    abstract class fater
    {
        public string usbname { get; set; }
        protected fater() { }
        

            protected fater(string usbname)
        {
            this.usbname = usbname;
        }

        public abstract void tell();
    }
}
